盘形滚刀破岩过程有限元数值模拟  

Finite element numerical simulation of process of rock breaking by disc cutter

作　　者：满林涛[1] 李守巨[1] 

机构地区：[1]大连理工大学工业装备结构分析国家重点实验室,辽宁大连116024

出　　处：《工程建设》2011年第4期1-5,共5页Engineering Construction

基　　金：国家重点基础研究发展规划(973)项目(2007CB714006);国家自然科学基金重点项目(90815023)

摘　　要：根据岩石Drucker-Prager塑性屈服准则和岩石的力学特性,利用ABAQUS软件建立岩石隧道掘进机(TBM)滚刀破岩的有限元模型,并模拟了滚刀的破岩过程,分析了滚刀破岩机理。模拟结果表明,不同的滚压深度对岩石破碎具有不同的效果。对于所选定的岩石力学参数,当滚压深度为4.8 mm时,岩石出现破碎。这对改进刀盘参数的设计,提高掘进效率具有一定的指导意义。According to Drucker-Prager plastic yield criterion of rock and rock mechanical properties,finite element model of rock breaking by TBM（tunnel boring machine） cutter was established by using ABAQUS software and process of rock cutting with disc cutter was simulated.The rock mechanism was also analyzed.The simulative results show that different rolling depths have different breaking effect on rocks.For the selected rock mechanics parameters,when the rolling depth reaches 4.8mm,the rock is broken,and this is instructive for improving the design of disc cutter parameters and improving the development efficiency.

关 键 词：盘形滚刀 数值模拟 破岩机理 DRUCKER-PRAGER模型 

分 类 号：U455.32[建筑科学—桥梁与隧道工程]